Ive been impressed with Sheila Shine, which Trav recommended for another application to me. Its real use is Stainless Steel.
Id suspect most any product would burn off in the use you state, so a powder coat, chrome, or high temperature paint might be necessary, but that wouldn't necessarily give you the look you like.
Id be looking for something to "season" the pipes, similar to cast iron. Not sure of the feasibility of this on SS.